Tello, a mobile application service that connects consumers with businesses in order to improve customer service, received $2.7 million in funding today. Photo via William Hook/Flickr Through Tello’s app, customers can direct feedback straight to a vendor — feedback about the business as a whole, an individual employee, or a specific experience, whether good or bad — to help vendors refine problem areas and ultimately increase sales. The system promises to be more effective and open to possibilities than surveys

Charles River Ventures (CRV), a venture capital firm that focuses on mobile, Internet, and software startups, just closed its fifteenth fund of $375 million. “We expected this funding raising to be tough given the current environment, and we were surprised by the demand from current investors,” CRV general partner Izhar Armony told VentureBeat in an interview. The fund was originally set for $300 million, but investors offered well beyond that in just over two month’s time. The VC had to turn investors away in order to keep the fund focused and small.

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Ad company OpenX , which helps publishers and enterprise companies sell valuable ad space, said today it has acquired LiftDNA , which helps find untapped ad sources and track how much money publishers make off of ad campaigns. OpenX is an ad-serving company that takes a holistic approach to managing ad campaigns and inventory. The company set out to combat a problem most publishers face: the need to manage multiple ad services with different companies.